Ratajczak, Piotr
Current rating: 1487
Record: 3-4
| Grand Prix Prague 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 219 | Locker, Adam (1446) | Won 2-0 | +171517 |
| 2modern | 172 | Vaananen, Aleksi (1756) | Lost 1-2 | -141503 |
| 3modern | 405 | Muschalle, Thomas (1500) | Won 2-1 | +181521 |
| 4modern | 311 | Mares, Jiri (1516) | Lost 0-2 | -181503 |
| 5modern | 463 | Landoni, Nicola (1631) | Lost 1-2 | -161487 |
| 6modern | 495 | Eichenseer, Lukas (1483) | Won 2-1 | +181505 |
| 7modern | 430 | Tennivaara, Sabina (1499) | Lost 1-2 | -181487 |
| average opponent: 1547record: 3-4 | new rating: 1487 | |||